Horizon

Horizon: Is Seeing Believing? Interactive Experience

See some of the cleverest and most intriguing optical illusions ever created in our interactive video experience. They're meant to be fun but they are also designed to help scientists learn more about how we interpret the world around us.

Watch closely as there will be some questions along the way for you to answer. Be warned though, the illusions are designed to trick you.

Can three minutes of exercise a week help make you fit?

Information and Support

Have you, or someone you know, been affected by the issues raised in this programme?